Real-world performance of HIV low viral load values in diagnosing acute HIV infection in a tertiary care hospital in Beijing, China. - Li, Li; Feng, Xia; Zhao, Fei; Yuan, Defu; An, Xizhao; Tian, Xiaoxue; Wu, Hao; Su, Bin; Zhang, Tong; Liu, Lifeng (BMC Infectious Diseases, 2024)